Tracking of oxide formation in laser-produced uranium plasmas

We use a spatially and temporally resolved emission tracking technique based on optical emission spectroscopy to map the evolution of emission features from uranium and its compounds in a plasma produced by a nanosecond laser. We observe quenching of the emission from neutral uranium (591.538 nm) an...

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Bibliographic Details
Published in:Optics letters 2018-10, Vol.43 (20), p.5118-5121
Main Authors: Skrodzki, P J, Burger, M, Jovanovic, I, Phillips, M C, Brumfield, B E, Harilal, S S
Format: Article
Language:English
Subjects:
Optical emission spectroscopy
Plasma
Tracking
Uranium
Uranium oxides
Uranium plasmas
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Summary:We use a spatially and temporally resolved emission tracking technique based on optical emission spectroscopy to map the evolution of emission features from uranium and its compounds in a plasma produced by a nanosecond laser. We observe quenching of the emission from neutral uranium (591.538 nm) and uranium monoxide (593.55 nm) species with increasing oxygen concentration and discuss possible reaction pathways for dissociation or formation of higher uranium oxides (U O ). We further identify spectral features between 320 nm and 380 nm and between 520 nm and 640 nm, which we attribute to U O .
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.43.005118